Download the 2005 fse user manual, it has a good wiring schematic with a ecu connector pinout. Then remove the tank and disconnect the ecu, you will then have access to the sensors for measuring resistance through the ecu harness connector. While you have tank off, inspect the connector on the ecu for broken pins. Now is a matter of looking for the sensor on the schematic, following the lead to ecu, and checking which pin number it connects to. Get your multimeter out!
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